Substrate carrying a porous polymeric material

Details Substrate carrying a porous polymeric material Substrate carrying a porous polymeric material

A - Human Necessities

61

L

252/31, 31/80.1

A61L 15/00 (2006.01) A47L 13/17 (2006.01) C08J 9/28 (2006.01)

Patent

CA 1196620

ABSTRACT An article suitable for delivering or absorbing liquid includes a substrate carrying a pressure- sensitive porous polymeric material which is capable of retaining at least 10 times its own weight of water or corresponding amounts of other liquids. The porous polymeric material is advantageously a crosslinked homogeneous block material having a dry density of less than 0.1 g/cc and a pore volume of more than 9 cc/g, and may be produced by polymerisation of a high internal phase emulsion. In the article of the invention, the polymer may either be dry or contain an included liquid; the dry form is highly absorbent and is useful for mopping up spillages, while the liquid-containing form is useful for delivering treatment liquids, for example, cleaning compositions, to surfaces. The article may take the form of a single- or multi-compartment sachet of paper or nonwoven fabric containing the porous polymeric material.

405527

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